everything now works

Core/Inc/main.h

@@ -22,6 +22,9 @@
 #ifndef __MAIN_H
 #define __MAIN_H
 
+// this is a hack needed for CLion
+#define USE_FULL_LL_DRIVER
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -72,6 +75,8 @@ void Error_Handler(void);
 /* USER CODE END EFP */
 
 /* Private defines -----------------------------------------------------------*/
+int _write(int fd, const char *pcBuffer, int iLength);
+
 #define LED_Pin LL_GPIO_PIN_13
 #define LED_GPIO_Port GPIOC
 #define ADC_PT100_Pin LL_GPIO_PIN_0

Core/Src/app_oled.c

@@ -8,22 +8,22 @@
 #include "ufb/framebuffer.h"
 #include "gpio.h"
 #include "spi.h"
+#include "FreeRTOS.h"
 
 #define SSD1309_HEIGHT 64
 
 static inline void cs_select()
 {
-    // FIXME are the nops needed?
-    asm volatile("nop \n nop \n nop");
+    //asm volatile("nop \n nop \n nop");
     LL_GPIO_ResetOutputPin(OLED_CS_GPIO_Port, OLED_CS_Pin); // Active low
-    asm volatile("nop \n nop \n nop");
+    //asm volatile("nop \n nop \n nop");
 }
 
 static inline void cs_deselect()
 {
-    asm volatile("nop \n nop \n nop");
+    //asm volatile("nop \n nop \n nop");
     LL_GPIO_SetOutputPin(OLED_CS_GPIO_Port, OLED_CS_Pin);
-    asm volatile("nop \n nop \n nop");
+    //asm volatile("nop \n nop \n nop");
 }
 
 static inline void dc_command()
@@ -42,10 +42,11 @@ void oled_command16(uint8_t cmd, uint8_t arg)
     cs_select();
 
     LL_SPI_TransmitData8(SPI_OLED, cmd);
-    while (!LL_SPI_IsActiveFlag_TXE(SPI_OLED)) {}
 
+    while (!LL_SPI_IsActiveFlag_TXE(SPI_OLED)) {}
     LL_SPI_TransmitData8(SPI_OLED, arg);
-    while (LL_SPI_IsActiveFlag_BSY(SPI_OLED)) {}
+
+    while (!LL_SPI_IsActiveFlag_TXE(SPI_OLED) || LL_SPI_IsActiveFlag_BSY(SPI_OLED)) {}
 
     cs_deselect();
 }
@@ -56,7 +57,7 @@ void oled_command(uint8_t cmd)
     cs_select();
 
     LL_SPI_TransmitData8(SPI_OLED, cmd);
-    while (LL_SPI_IsActiveFlag_BSY(SPI_OLED)) {}
+    while (!LL_SPI_IsActiveFlag_TXE(SPI_OLED) || LL_SPI_IsActiveFlag_BSY(SPI_OLED)) {}
 
     cs_deselect();
 }

Core/Src/app_temp.c

@@ -6,6 +6,7 @@
 #include <stdbool.h>
 #include <stdint.h>
 #include <string.h>
+#include <stdio.h>
 #include "app_temp.h"
 #include "adc.h"
 
@@ -153,6 +154,7 @@ void app_analog_init()
 
     LL_ADC_EnableIT_EOS(ADC_TEMP);
 
+    LL_ADC_REG_StartConversionExtTrig(ADC_TEMP, LL_ADC_REG_TRIG_EXT_RISING);
     LL_ADC_REG_StartConversionSWStart(ADC_TEMP);
 }
 
@@ -242,3 +244,8 @@ void app_temp_adc_eos()
     memcpy((void *) &s_analog.adc_averagebuf[s_analog.averagebuf_ptr * 4], (const void *) adc_values, 4 * sizeof(uint16_t));
     s_analog.averagebuf_ptr = (s_analog.averagebuf_ptr + 1) % AVERAGEBUF_DEPTH;
 }
+
+void app_temp_show_buf()
+{
+    printf("%d,%d,%d,%d\r\n", adc_values[0], adc_values[1], adc_values[2], adc_values[3]);
+}

Core/Src/app_temp.h

@@ -26,4 +26,6 @@ float app_temp_read_soc();
 
 void app_temp_adc_eos();
 
+void app_temp_show_buf();
+
 #endif //BLUEPILLTROUBA_APP_TEMP_H

Core/Src/gpio.c

@@ -56,7 +56,8 @@ void MX_GPIO_Init(void)
   LL_GPIO_ResetOutputPin(LED_GPIO_Port, LED_Pin);
 
   /**/
-  LL_GPIO_ResetOutputPin(GPIOB, OLED_CS_Pin|OLED_DC_Pin|OLED_RST_Pin);
+  LL_GPIO_SetOutputPin(GPIOB, OLED_CS_Pin|OLED_DC_Pin|OLED_RST_Pin);
+  //LL_GPIO_ResetOutputPin(GPIOB, OLED_CS_Pin|OLED_DC_Pin|OLED_RST_Pin);
 
   /**/
   GPIO_InitStruct.Pin = LED_Pin;
@@ -84,7 +85,7 @@ void MX_GPIO_Init(void)
   /**/
   GPIO_InitStruct.Pin = OLED_CS_Pin|OLED_DC_Pin|OLED_RST_Pin;
   GPIO_InitStruct.Mode = LL_GPIO_MODE_OUTPUT;
-  GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
+  GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_HIGH;
   GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
   LL_GPIO_Init(GPIOB, &GPIO_InitStruct);
 

Core/Src/spi.c

@@ -21,7 +21,6 @@
 #include "spi.h"
 
 /* USER CODE BEGIN 0 */
-
 /* USER CODE END 0 */
 
 /* SPI2 init function */
@@ -53,7 +52,7 @@ void MX_SPI2_Init(void)
     /* USER CODE BEGIN SPI2_Init 1 */
 
     /* USER CODE END SPI2_Init 1 */
-  SPI_InitStruct.TransferDirection = LL_SPI_FULL_DUPLEX;
+    SPI_InitStruct.TransferDirection = LL_SPI_HALF_DUPLEX_TX;
     SPI_InitStruct.Mode = LL_SPI_MODE_MASTER;
     SPI_InitStruct.DataWidth = LL_SPI_DATAWIDTH_8BIT;
     SPI_InitStruct.ClockPolarity = LL_SPI_POLARITY_LOW;

Core/Src/stm32f1xx_it.c

@@ -186,10 +186,12 @@ void ADC1_2_IRQHandler(void)
 {
   /* USER CODE BEGIN ADC1_2_IRQn 0 */
 
-  if (LL_ADC_IsActiveFlag_EOS(ADC_TEMP)) {
-      LL_ADC_ClearFlag_EOS(ADC_TEMP);
     app_temp_adc_eos();
-  }
+
+//  if (LL_ADC_IsActiveFlag_EOS(ADC_TEMP)) {
+//      LL_ADC_ClearFlag_EOS(ADC_TEMP);
+//      app_temp_adc_eos();
+//  }
 
   /* USER CODE END ADC1_2_IRQn 0 */